It's weeks since I was ill.It's weeks since I fell ill.这两句话中since引导的从句中如果是持续性动词,则表示这一行为的终止,如果是终止性动词则表示这一行为的开始.这两句话里面谁是持续性动词呢?ill

It's three weeks since you were ill(什么意思) it's years since i It's weeks since I was ill.It's weeks since I fell ill.这两句话中since引导的从句中如果是持续性动词,则表示这一行为的终止,如果是终止性动词则表示这一行为的开始.这两句话里面谁是持续性动词呢?ill it's been several weeks since he___(join) the music club有since的话后面要用什么时态 It has been two weeks since I last wrote to you.意思? I have stayed at my aunt's since two weeks.同义句是什么 It’s three weeks since we （ ） him.A.see B.saw C.have had D.have seen 改错句:It is two weeks since I have seen him要说出具体原因,确切点 I haven't met him since 1999.=It's ( ) years since I ( ) him. it's a long time since i last saw you it's really been a longtime since i went home. It's years since I enjoyed myself so much 翻译 It's years (since) I enjoyed myself so much.Why? 英语翻译1.He has had several jobs since he graduated form Yale.2.He has had several jobs since he was a student at Yale.为什么语法书上解释说这两个句子的意思是相近的.同样下面一句It's two weeks since I was ill.语法书 改错：It is 3 weeks since Ihave seen him. A:what's (1) with you?B:I've got a pain here.A:how (2) have you had it?B:since two weeks (3).A:let me (4).do you feel the pain here and there?B:yes,it's very serious.A:i think you will have to stay in (5) for a few days.B:really?it must be quite seri It's years since I enjoyed myself so much.其中since是什么用法? 短文改错：Dear Tom,1.It’s two months since I come here.Though I’ve made a lot of2.friends,I miss you very much.My birthday is two weeks away.3.How I wish I could celebrate such important day with you.Now4.I’m writing to invite you to my bi